Improvement in oas-governors



B. F. POTTER 8L R. C. HAYTON.

Gas Governors.

N0,l5l,428, Patented May 26,1874.

UNITED STATES PATENT EEICE.

BENJAMIN F. POTTER AND ROBERT O. HAYTON, OF YPSILANTI, 'MICHIGANIMPROVEMENT IN GAS-GOVERNORS.

Specification forming part of Letters Patent No. 151,425, dated May 26,1874; application filed,

April 4, 1874.

To all whom it may concern:

'Be it known that we, BENJAMIN F. POTTER and ROBERT C. HAYTON, of thecity of Ypsilanti, in the county of Washtenaw and State of Michigan,have invented certain new and useful Improvements in Gas-Governors; andwe do hereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawings,and to the letters of reference marked thereon, which form part of thisspecification.

The nature of our invention consists in the construction and arrangementof a gas-governor for regulating the iiow of gas, as will be hereinaftermore fully set forth.

In order to enable others skilled in the art to which our inventionappertains to make and use the same, we will now proceed to describe itsconstruction and operation, referring to the annexed drawing, in which-Figure 1 is a plan view 5 Fig. 2, a central vertical section throughline a' ai, and Fig. 3 a view of the valve c.

A A represent two sorewcollars, coupled together by means of a coupling,B, in any of the known and usual ways, and to be used in attaching thepipe either above or below the meter. In one of the collars A isarranged a self-actin g spring-valve, U, which opens toward thedirection from which the gas flows, so as to be acted upon by thepressure of the gas itself, and thus forming a sure and effectualsafeguard against any superfluous flow of gas. If the pressure ofthe gasis light the valve will open more and let more of the gas pass through;but as the pressure of the gas increases it closes the valve more andmore, making the gas, so to say, regulate itself. On one side of thisvalve-that is, either above or below-is inserted a perforated diaphragm,l), forming between it and the spring-valve a dead-air chamber, whichmay be regulated at will by moving the diaphragm up for light pressure,or down for heavy pressure, if required.

The space between the valve and the perforated cap, which we term thedead-air chamber, operates as follows: The gas, after passing the valve,is partially confined in the deadair chamber by the perforated cap, andso checks, by a counter-pressure, the action of the valve. Without thisdead-air chamber the valve under high pressure closes too quick. Vhenthe pressure upon the valve is very great the counter-pressure upon theother side of the valve from the gas in the dead-air chamber isproportionately increased. lllhen the pressure upon the valve is lightthis counterpressure is proportionately diminished. The result is, thatthe difference of the two press- Anres--forward and backward-remainsvery nearly constant.

Having thus fully described our invention, what we claim as new, anddesire to secure by Letters Patent, is-

l. The spring-valve C, arranged in the coupling A B, and acted upon bythe gas, substantially as and for the purposes herein set forth.

2. The adjustable perforated diaphragm D, in coinbinat-ion with theself-acting springvalve O, substantially as and for the purposes hereinset forth.

In testimony thatwe claim the foregoing as our own we affix oui`signatures in presence of two witnesses.

BENJ. F. POTTER. ROBERT C. HAYTON.

Titnessesz C. F. McKrNsTnv, S. M. GUToHEoN.

